What are some advanced Python examples I can learn from?

What are some advanced Python examples I can learn from?

Here are a few advanced Python examples you might find interesting: 1. Decorators for modifying functions, 2. Context managers for resource management, 3. Generators for efficient data handling.

Can you explain how decorators work with an example?

Sure! A decorator is a function that takes another function and extends its behavior without explicitly modifying it. For example:

def my_decorator(func):
    def wrapper():
        print("Something is happening before the function is called.")
        func()
        print("Something is happening after the function is called.")
    return wrapper

@my_decorator
def say_hello():
    print("Hello!")

say_hello()

What about context managers? How do they work?

Context managers are used to manage resources, ensuring they are properly acquired and released. The most common way to create one is using the with statement. For example:

with open('file.txt', 'r') as file:
    data = file.read()
# The file is automatically closed after the block.

Can you give me a generator example?

Absolutely! Generators allow you to iterate over a sequence of values without storing them all in memory. Here's a simple example:

def count_up_to(n):
    count = 1
    while count <= n:
        yield count
        count += 1

for number in count_up_to(5):
    print(number)